#821083 Spec Diameter Thread Threads Length Grade Finish Weight 0.5 (1/2) Full 20 1.5 (1 1/2) Grade 8 Phos & Oil .1355 Diameter 0.5 (1/2) Thread 20 Length 1.5 (1 1/2) Grade Grade 8 Finish Phos & Oil Weight .1355 Need Something Custom?